Re: [PATCH v5 1/9] leds: multicolor: Add sysfs interface definition

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Hello

On 9/15/19 8:57 AM, Jacek Anaszewski wrote:
Hi Dan,

On 9/11/19 8:01 PM, Dan Murphy wrote:
Add a documentation of LED Multicolor LED class specific
sysfs attributes.

Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
  .../ABI/testing/sysfs-class-led-multicolor    | 73 +++++++++++++++++++
  1 file changed, 73 insertions(+)
  create mode 100644 Documentation/ABI/testing/sysfs-class-led-multicolor

diff --git a/Documentation/ABI/testing/sysfs-class-led-multicolor b/Documentation/ABI/testing/sysfs-class-led-multicolor
new file mode 100644
index 000000000000..4ea54c2ad4c8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-multicolor
@@ -0,0 +1,73 @@
+What:		/sys/class/leds/<led>/brightness
+Date:		Sept 2019
+KernelVersion:	5.5
+Contact:	Dan Murphy <dmurphy@xxxxxx>
+Description:	read/write
+		The multicolor class will redirect the device drivers call back
+		function for brightness control to the multicolor class
+		brightness control function.
+
+		Writing to this file will update all LEDs within the group to a
+		calculated percentage of what each color LED in the group is set
+		to.  The percentage is calculated via the equation below:
+
+		led_brightness = requested_value * led_color_intensity/led_color_max_intensity
+
+		For additional details please refer to
+		Documentation/leds/leds-class-multicolor.rst.
+
+		The value of the color is from 0 to
+		/sys/class/leds/<led>/max_brightness.
+
+What:		/sys/class/leds/<led>/colors/color_mix
+Date:		Sept 2019
+KernelVersion:	5.5
+Contact:	Dan Murphy <dmurphy@xxxxxx>
+Description:	read/write
+		The values written to this file should contain the intensity
+		values of each multicolor LED within the colors directory. The
+		index of given color is reported by the color_id file present in
+		colors/<color> directory. The index determines the position in
+		the sequence of	intensities on which the related intensity
+		should be passed to this file.
+
+		For additional details please refer to
+		Documentation/leds/leds-class-multicolor.rst.
As already mentioned in the reply to Pavel - let's avoid the
introduction of another sysfs file with multiple values.

OK for clarification remove the color_mix and color_id files and keep the intensity files?

Dan




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